Appending a plus sign and any suffix to a gmail address solves this to some extent. Many unique addresses all accessible from one gmail login, and can be classi

Appending a plus sign and any suffix to a gmail address solves this to some extent. Many unique addresses all accessible from one gmail login, and can be classified into separate folders using filters. One minor inconvenience I've encountered is that a few services have buggy email validation which prevent such addresses. [1]: https://gmail.googleblog.com/2008/03/2-hidden-ways-to-get-more-from-your.html https://gmail.googleblog.com/2008/03/2-hidden-ways-to-get-mo...